[INFO] fetching crate serfig 0.1.0... [INFO] testing serfig-0.1.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate serfig 0.1.0 into /workspace/builds/worker-2-tc2/source [INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml [INFO] started tweaking crates.io crate serfig 0.1.0 [INFO] finished tweaking crates.io crate serfig 0.1.0 [INFO] tweaked toml for crates.io crate serfig 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate serfig 0.1.0 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 45 packages to latest compatible versions [INFO] [stderr] Adding env_logger v0.10.2 (available: v0.11.8) [INFO] [stderr] Adding indexmap v1.9.3 (available: v2.12.0) [INFO] [stderr] Adding serde-bridge v0.0.3 (available: v0.1.0) [INFO] [stderr] Adding serde-env v0.1.1 (available: v0.2.0) [INFO] [stderr] Adding toml v0.7.8 (available: v0.9.8) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef016e1c8f91a56795057c8fd06105d7541431feb3ecb51f057adc422e866065 [INFO] running `Command { std: "docker" "start" "-a" "ef016e1c8f91a56795057c8fd06105d7541431feb3ecb51f057adc422e866065", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef016e1c8f91a56795057c8fd06105d7541431feb3ecb51f057adc422e866065", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef016e1c8f91a56795057c8fd06105d7541431feb3ecb51f057adc422e866065", kill_on_drop: false }` [INFO] [stdout] ef016e1c8f91a56795057c8fd06105d7541431feb3ecb51f057adc422e866065 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 541530b431241356ac0293faeadc9c28f8c5e9e8ca9832a2e34ba14dabfc18ca [INFO] running `Command { std: "docker" "start" "-a" "541530b431241356ac0293faeadc9c28f8c5e9e8ca9832a2e34ba14dabfc18ca", kill_on_drop: false }` [INFO] [stderr] Compiling winnow v0.5.40 [INFO] [stderr] Compiling serde_spanned v0.6.9 [INFO] [stderr] Compiling toml_datetime v0.6.11 [INFO] [stderr] Compiling serde-env v0.1.1 [INFO] [stderr] Compiling serde-bridge v0.0.3 [INFO] [stderr] Compiling toml_edit v0.19.15 [INFO] [stderr] Compiling toml v0.7.8 [INFO] [stderr] Compiling serfig v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.93s [INFO] running `Command { std: "docker" "inspect" "541530b431241356ac0293faeadc9c28f8c5e9e8ca9832a2e34ba14dabfc18ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "541530b431241356ac0293faeadc9c28f8c5e9e8ca9832a2e34ba14dabfc18ca", kill_on_drop: false }` [INFO] [stdout] 541530b431241356ac0293faeadc9c28f8c5e9e8ca9832a2e34ba14dabfc18ca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ffa5324aa82c1395471392eec9ea27a565f018173137addaca1640edfa7d4be4 [INFO] running `Command { std: "docker" "start" "-a" "ffa5324aa82c1395471392eec9ea27a565f018173137addaca1640edfa7d4be4", kill_on_drop: false }` [INFO] [stderr] Compiling regex-automata v0.4.13 [INFO] [stderr] Compiling is-terminal v0.4.17 [INFO] [stderr] Compiling temp-env v0.3.6 [INFO] [stderr] Compiling serde_spanned v0.6.9 [INFO] [stderr] Compiling toml_datetime v0.6.11 [INFO] [stderr] Compiling serde-env v0.1.1 [INFO] [stderr] Compiling serde-bridge v0.0.3 [INFO] [stderr] Compiling toml_edit v0.19.15 [INFO] [stderr] Compiling toml v0.7.8 [INFO] [stderr] Compiling regex v1.12.2 [INFO] [stderr] Compiling serfig v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling env_logger v0.10.2 [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.80s [INFO] running `Command { std: "docker" "inspect" "ffa5324aa82c1395471392eec9ea27a565f018173137addaca1640edfa7d4be4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ffa5324aa82c1395471392eec9ea27a565f018173137addaca1640edfa7d4be4", kill_on_drop: false }` [INFO] [stdout] ffa5324aa82c1395471392eec9ea27a565f018173137addaca1640edfa7d4be4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c03275e1209f591983db2b4064c7e9f6f742806d639eb86f9cedea0d53957943 [INFO] running `Command { std: "docker" "start" "-a" "c03275e1209f591983db2b4064c7e9f6f742806d639eb86f9cedea0d53957943", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serfig-0472183816cc6778) [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test builder::tests::test_build ... ok [INFO] [stdout] test builder::tests::test_config_bool_enabled ... ok [INFO] [stdout] test collectors::value::tests::test_from_self ... ok [INFO] [stdout] test collectors::structural::tests::test_from_str ... ok [INFO] [stdout] test value::tests::test_merge ... ok [INFO] [stdout] test builder::tests::test_layered_build ... ok [INFO] [stdout] test builder::tests::test_layered_build_default ... ok [INFO] [stdout] test builder::tests::test_layered_build_vec ... ok [INFO] [stdout] test builder::tests::test_layered_overwrite ... ok [INFO] [stdout] test collectors::env::tests::test_env ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests serfig [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test src/collectors/collector.rs - collectors::collector::Collector (line 13) ... ignored [INFO] [stdout] test src/collectors/mod.rs - collectors (line 5) ... ignored [INFO] [stdout] test src/collectors/structural.rs - collectors::structural::from_reader (line 18) - compile ... ok [INFO] [stdout] test src/collectors/structural.rs - collectors::structural::from_file (line 61) - compile ... ok [INFO] [stdout] test src/collectors/value.rs - collectors::value::from_self (line 15) - compile ... ok [INFO] [stdout] test src/builder.rs - builder::Builder::build (line 130) - compile ... FAILED [INFO] [stdout] test src/builder.rs - builder::Builder::collect (line 33) ... ok [INFO] [stdout] test src/collectors/env.rs - collectors::env::from_env (line 17) ... ok [INFO] [stdout] test src/builder.rs - builder::Builder::build_with (line 72) ... ok [INFO] [stdout] test src/collectors/structural.rs - collectors::structural::from_str (line 102) ... ok [INFO] [stdout] test src/collectors/mod.rs - collectors (line 23) ... ok [INFO] [stdout] test src/lib.rs - (line 7) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/builder.rs - builder::Builder::build (line 130) stdout ---- [INFO] [stdout] error: this function depends on never type fallback being `()` [INFO] [stdout] --> src/builder.rs:145:1 [INFO] [stdout] | [INFO] [stdout] 17 | fn main() -> anyhow::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: Serialize` will fail [INFO] [stdout] --> src/builder.rs:146:19 [INFO] [stdout] | [INFO] [stdout] 18 | let builder = Builder::default() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] = note: `#[deny(dependency_on_unit_never_type_fallback)]` (part of `#[deny(rust_2024_compatibility)]`) on by default [INFO] [stdout] help: use `()` annotations to avoid fallback changes [INFO] [stdout] | [INFO] [stdout] 19 | .collect(from_env::<()>()) [INFO] [stdout] | ++++++ [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/builder.rs - builder::Builder::build (line 130) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 9 passed; 1 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.71s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "c03275e1209f591983db2b4064c7e9f6f742806d639eb86f9cedea0d53957943", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c03275e1209f591983db2b4064c7e9f6f742806d639eb86f9cedea0d53957943", kill_on_drop: false }` [INFO] [stdout] c03275e1209f591983db2b4064c7e9f6f742806d639eb86f9cedea0d53957943